<template>
  <div>
    <div id="main" style="width: 600px; height: 400px; margin-left: 50px"></div>
    <div>
      <el-button type="primary" @click="back">返回柱状图</el-button>
    </div>
  </div>
</template>

<script>
export default {
  name: "FormView",

  data() {
    return {};
  },

  created() {
    // this.treemapShow();
  },

  mounted() {
    this.treemapShow();
  },

  methods: {
    // 显示饼图
    treemapShow() {
      //   let dom = document.getElementById("main");
      let myCharts = this.$echarts.init(document.getElementById("main"));
      let setOptions = {
        title: {
          text: "Referer of a Website",
          subtext: "Fake Data",
          left: "center",
        },
        tooltip: {
          trigger: "item",
        },
        legend: {
          orient: "vertical",
          left: "left",
        },
        series: [
          {
            name: "Access From",
            type: "pie",
            radius: "50%",
            data: [
              { value: 1048, name: "Search Engine" },
              { value: 735, name: "Direct" },
              { value: 580, name: "Email" },
              { value: 484, name: "Union Ads" },
              { value: 300, name: "Video Ads" },
            ],
            emphasis: {
              itemStyle: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: "rgba(0, 0, 0, 0.5)",
              },
            },
          },
        ],
      };
      setOptions && myCharts.setOption(setOptions);
    },

    back() {
      this.$router.push("./barView");
    },
  },
};
</script>

<style lang="less" scoped>
</style>